/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.linkis.orchestrator.plans.ast

import org.apache.linkis.orchestrator.utils.OrchestratorIDCreator

/**
 */
trait Stage extends ASTOrchestration[Stage] {

  private var visited: Boolean = false

  private var id: String = _

  override def isVisited: Boolean = visited

  override def setVisited(): Unit = this.visited = true

  def getJob: Job

  override def getId: String = {
    if (null == id) synchronized {
      if (null == id) {
        id = OrchestratorIDCreator.getAstStageIDCreator.nextID("astStage")
      }
    }
    id
  }

}
